1 ; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s 2 ; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s 3 4 declare half @llvm.sqrt.f16(half %a) 5 declare <2 x half> @llvm.sqrt.v2f16(<2 x half> %a) 6 7 ; GCN-LABEL: {{^}}sqrt_f16 8 ; GCN: buffer_load_ushort v[[A_F16:[0-9]+]] 9 ; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]] 10 ; SI: v_sqrt_f32_e32 v[[R_F32:[0-9]+]], v[[A_F32]] 11 ; SI: v_cvt_f16_f32_e32 v[[R_F16:[0-9]+]], v[[R_F32]] 12 ; VI: v_sqrt_f16_e32 v[[R_F16:[0-9]+]], v[[A_F16]] 13 ; GCN: buffer_store_short v[[R_F16]] 14 ; GCN: s_endpgm 15 define amdgpu_kernel void @sqrt_f16( 16 half addrspace(1)* %r, 17 half addrspace(1)* %a) { 18 entry: 19 %a.val = load half, half addrspace(1)* %a 20 %r.val = call half @llvm.sqrt.f16(half %a.val) 21 store half %r.val, half addrspace(1)* %r 22 ret void 23 } 24 25 ; GCN-LABEL: {{^}}sqrt_v2f16 26 ; GCN: buffer_load_dword v[[A_V2_F16:[0-9]+]] 27 ; SI: v_lshrrev_b32_e32 v[[A_F16_1:[0-9]+]], 16, v[[A_V2_F16]] 28 ; SI: v_cvt_f32_f16_e32 v[[A_F32_1:[0-9]+]], v[[A_F16_1]] 29 ; SI: v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_V2_F16]] 30 ; SI: v_sqrt_f32_e32 v[[R_F32_1:[0-9]+]], v[[A_F32_1]] 31 ; SI: v_sqrt_f32_e32 v[[R_F32_0:[0-9]+]], v[[A_F32_0]] 32 ; SI: v_cvt_f16_f32_e32 v[[R_F16_1:[0-9]+]], v[[R_F32_1]] 33 ; SI: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_0]] 34 ; SI-DAG: v_lshlrev_b32_e32 v[[R_F16_HI:[0-9]+]], 16, v[[R_F16_1]] 35 ; SI-NOT: v_and_b32 36 ; SI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_0]], v[[R_F16_HI]] 37 38 ; VI-DAG: v_sqrt_f16_e32 v[[R_F16_0:[0-9]+]], v[[A_V2_F16]] 39 ; VI-DAG: v_sqrt_f16_sdwa v[[R_F16_1:[0-9]+]], v[[A_V2_F16]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 40 ; VI-NOT: v_and_b32 41 ; VI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_0]], v[[R_F16_1]] 42 43 ; GCN: buffer_store_dword v[[R_V2_F16]] 44 ; GCN: s_endpgm 45 define amdgpu_kernel void @sqrt_v2f16( 46 <2 x half> addrspace(1)* %r, 47 <2 x half> addrspace(1)* %a) { 48 entry: 49 %a.val = load <2 x half>, <2 x half> addrspace(1)* %a 50 %r.val = call <2 x half> @llvm.sqrt.v2f16(<2 x half> %a.val) 51 store <2 x half> %r.val, <2 x half> addrspace(1)* %r 52 ret void 53 } 54
